Ultra-low nicotine smoking article

Patent metadata

Field	Value
Publication number	US-12453366-B2
Application number	US-202318354290-A
Country	US
Kind code	B2
Filing date	Jul 18, 2023
Priority date	Dec 23, 2022
Publication date	Oct 28, 2025
Grant date	Oct 28, 2025

Abstract

The present disclosure relates to an ultra-low nicotine smoking article. The smoking article includes a medium part and a filter part, in which the medium part includes a tobacco medium including flue-cured tobacco, dry ice expanded tobacco, and expanded stems, the tobacco medium includes 50% by weight (wt %) to 60 wt % of flue-cured tobacco, 20 wt % to 30 wt % of dry ice expanded tobacco, and 10 wt % to 30 wt % of expanded stems based on the total weight, and the tobacco medium has a nicotine content of 0.01% to 0.05%.

First claim

The invention claimed is:

1 . An ultra-low nicotine smoking article consisting of a medium part and a filter part,
wherein the medium part is a tobacco medium consisting of 50% by weight (wt %) to 60 wt % of flue-cured tobacco, 20 wt % to 30 wt % of dry ice expanded tobacco, and 10 wt % to 30 wt % of expanded stems based on the total weight, wherein the tobacco medium is obtained from Nicotiana tabacum L., wherein the tobacco medium is a blend of leaf tobacco having a total nitrogen content of 0.05% to 1%, and wherein the tobacco medium has a nicotine content of 0.01% to 0.05%.

2 . The ultra-low nicotine smoking article of claim 1 , wherein the flue-cured tobacco, dry ice expanded tobacco, and expanded stems are separated from at least one selected from the group consisting of thick leaves and thin leaves of flue-cured tobacco.

3 . The ultra-low nicotine smoking article of claim 1 , wherein the smoking article has an air dilution rate of 10% to 60%.

4 . The ultra-low nicotine smoking article of claim 1 , wherein tar among smoke components in mainstream smoke of the smoking article is contained in an amount of 4 mg/cig to 8 mg/cig.

5 . The ultra-low nicotine smoking article of claim 1 , wherein nicotine among smoke components in mainstream smoke of the smoking article is contained in an amount of 0.02 mg/cig to 0.05 mg/cig.

6 . The ultra-low nicotine smoking article of claim 1 , wherein carbon monoxide among smoke components in mainstream smoke of the smoking article is contained in an amount of 3 mg/cig to 18 mg/cig.

7 . The ultra-low nicotine smoking article of claim 1 , wherein the smoking article has an UPD/EPD value of 0.5 to 0.9.

8 . The ultra-low nicotine smoking article of claim 1 , wherein the medium part has a weight of 500 mg/cig to 700 mg/cig.

9 . The ultra-low nicotine smoking article of claim 1 , wherein the filter part may have a pressure drop of 60 mmWG to 100 mmWG.

10 . An ultra-low nicotine smoking article consisting of a medium part and a filter part,
wherein the medium part is a tobacco medium consisting of 50% by weight (wt %) to 60 wt % of flue-cured tobacco, 20 wt % to 30 wt % of dry ice expanded tobacco, and 10 wt % to 30 wt % of expanded stems based on the total weight, wherein the tobacco medium is obtained from Nicotiana tabacum L., wherein the tobacco medium is a blend of leaf tobacco having a total nitrogen content of 0.05% to 1%, wherein the tobacco medium has a nicotine content of 0.01% to 0.05%, and wherein tar and nicotine among smoke components in mainstream smoke of the smoking article have a content ratio of 80:1 to 400:1.

11 . The ultra-low nicotine smoking article of claim 10 , wherein nicotine among the smoke components in the mainstream smoke of the smoking article is contained in an amount of 0.02 mg/cig to 0.05 mg/cig.

12 . The ultra-low nicotine smoking article of claim 10 , wherein the smoking article has an UPD/EPD value of 0.5 to 0.9.

13 . The ultra-low nicotine smoking article of claim 10 , wherein the medium part has a weight of 500 mg/cig to 700 mg/cig.

14 . The ultra-low nicotine smoking article of claim 10 , wherein the filter part may have a pressure drop of 60 mmWG to 100 mmWG.

Assignees

• Kt & G Corp

Inventors

• Kim Han Saem
• Park Jae Woo
• Jung Yeon Seok
• Choi Young Jin

Classifications

• A24D3/043 Primary

  with ventilation means, e.g. air dilution (A24D3/041 takes precedence) · CPC title

• A24D1/045

  with smoke filter means (A24D1/047 takes precedence) · CPC title

• A24B3/14

  Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products (delustering A24C1/40) · CPC title

• A24B3/08

  Blending tobacco · CPC title

• A24D1/04

  with mouthpieces or filter-tips · CPC title